I too was unable to run the directions as-is. There’s a typo, the filename in the ‘tar’ command should be wfview-linux.tar.gz. We’ll get that fixed up for you. I had some issues trying to follow the directions on my system beyond this one though, so I will take a careful look into how to better streamline this process. In particular, some of the other steps that involve libraries seem to have slightly different names on my system.